body,html{
    line-height: 1;
    font-weight: 200;
    font-family: "Microsoft YaHei";
}
.clearfix{
    display: inline-block;
    &:after{
       display: block;
       content: '.';
       height: 0;
       line-height: 0;
       clear: both;
       visibility: hidden;
    }
}

@media (-webkit-min-device-pixel-ratio:1.5),(min-device-pixel-ratio:1.5){
    .border-1px{
       &:after{
           -webkit-transform: scaleY(0.7);
           transform: scaleY(0.7);
       } 
    }
}
@media (-webkit-min-device-pixel-ratio:2),(min-device-pixel-ratio:2){
    .border-1px{
       &:after{
           -webkit-transform: scaleY(0.5);
           transform: scaleY(0.5);
       } 
    }
}
